DE3103162A1 - Conveying apparatus for loads - Google Patents

Abstract

In a conveying apparatus for conveying loads along a linear track, a top carrying rail arranged along the track is provided. A rack rail runs near to and parallel to the carrying rail. A carrying body having a platform is attached in a sliding manner to the carrying rail and is supported against lateral loading. A motor-driven gear rotatably attached to the carrying body is in sliding engagement with the rack. In order to maintain a completely stable position even during asymmetric loading of the platform, a rack is also arranged parallel to the supporting rail, in which rack a second bottom gear engages which is rotatably arranged on the carrying body and is rotatably coupled to the first gear.

Description

The invention relates to a conveyor device for loads,

especially bollard chairs, along a linear path with an upper, Support rail profile arranged along the track with one located on the upper web Rack and a parallel lower support rail, with a a support body having a platform olleitend or rolling to the support rail is attached and supported on the support rail against lateral loads, as well as Motor-driven gear wheels of the chassis that are rotatably attached to the support body is in driving engagement with the rack.

In particular, the conveyor device according to the invention is for conveying from wheelchairs to stairs in hospitals, old people's homes, private homes and the like. thought. Instead of the platform, a seat can optionally be placed on the support body to be assembled0 There is already a stair lift in the form of a monorail cogwheel train known (DE-OS 25 56 534), which has a running rail with a toothed profile on the underside, a transport trolley running on the track with rollers and a drive motor has, the drive wheel meshes with the tooth profile.

The running rail is arranged in the manner of a staircase handrail and combined with a transverse support rail, which is below the running rail is mounted in the area between steps and running rail. One the loads The load-bearing platform is suspended next to the running rail and on a transverse force support rail supported with additional support rollers.

For the purpose of stable support of the platform is in the known stair lift a relatively large longitudinal spacing of the support rollers is required. It is also suitable the well-known stair lift vorbentilllmlor only for attachment to a banister Tilt. Irirtjcordnrn for oicli changes to the support rail is the well-known stair lift not suitable, a stair lift for the disabled is also known (DE-OS 25 45 249), which consists of a along a side wall of a stairwell, about the stairs arranged guide and a frame movable along this consists0 The frame is equipped with a platform and controls for switching the eggs a drive motor that moves the elevator up the stairs. There are also devices that switch off the drive motor at the end of the journey. Furthermore, the known stair lift has means with which the platform at the end can be lowered with any movement of the elevator with respect to the frame. This well-known stair lift is also on a certain incline of the staircase coordinated and requires a considerable distance between the support rollers in the longitudinal direction to create a stable transport structureO Finally, there is already a Device for overcoming stairs by people incapable of climbing stairs in the form of a lifting device known (DE-Gbm 77 13 249), in which a seat with the Person can be lifted on a guide rail over the stairs. Here it is practical to install a lift in the area of the stairs, which has an in alloem usually non-existent space and only an insufficient one Adaptation to different stair inclines and depths allows.

The aim of the present invention is to provide a conveyor device of the type mentioned at the outset, in which the conveyor device in the direction of travel can be made extremely narrow, so that they can be driven around in particular sharp curves is suitable, and which is still suitable for asymmetrical loads the platform maintains a completely stable position and in this stable position without further is movable.

To solve this problem, the invention provides that between upper Support rail and lower support rail are exactly parallel horizontally and vertically are mounted to each other, a support body is arranged, which is linear or in curves, can be moved on a level or inclined surface.

The support body is at the top and bottom either on chassis that are in Carrying and support rails are positively driven, attached or by gears that run in the carrier and support rail, guided.

Toothed racks are provided in the carrier and support rails, in the toothed wheels engage, which is connected to a vertically arranged motor-driven shaft or moved by means of a worm drive.

Because the two gears each engaging in the racks are rotatably coupled to each other, both chassis must be exactly the same Perform shifting movements.

An inclination of the support body even with asymmetrical loads is therefore excluded.

The upper support rail is conveniently located near the ceiling, while the lower support rail can be laid in the ground. There carrier and support rails can be made very narrow, it is easily possible to use them at night tleispiolnwaioa in Trapponbäussern nnzubringon. Carrying and supporting chutes have been made in particular placed near the outer wall of a stairwell.

It is particularly advantageous that the support body has a vertically arranged, is hollow support column, inside which a rotating shaft runs vertically, the opposite one Ends are in rotationally fixed engagement with the gears. The formation of the support body as a support column leads to an extremely space-saving design, in particular the expansion of the support body in the direction of travel can be kept to a minimum.

The support column is also particularly suitable for storage the rotating shaft.

two of a first structural realization is provided that the Gears with a vertically running axis turn tightly on don Find the Drehl, lellrl are attached and that the racks are arranged next to it. It is preferred however, when the gears are horizontal and transverse to the direction of travel Axis are arranged and with the rotating shaft via a gear in a rotationally fixed connection stand. The gear is through a worm at each end of the rotating shaft and the gear engaged with her formed itself.

An advantageous embodiment of the invention is designed so that the rails are box-shaped HoI4rofile with a longitudinal slot on opposite sides Pages are. The support column should extend through the longitudinal slots and inside the hollow profiles carry chassis that engage the rails.

A first practical embodiment is characterized in that the upper chassis a frame arranged in the interior of the upper hollow profile and has two axles provided thereon with wheels, which on the inner edge of the upper hollow profile run next to the longitudinal slot.

According to the invention, the arrangement on the lower support rail is intended accordingly preferably be so that the lower chassis one inside the lower hollow profile arranged frame and two axes arranged thereon with only provided on one side Has wheels which engage in the longitudinal slot of the lower hollow profile0 When the diameter of the lower wheels is about the width of the longitudinal slot of the lower Hollow profile corresponds to a single pair of wheels to support the Support column prevented from swiveling out to both sides. Swiveling out in the direction of travel is prevented by the non-rotatably coupled gears and the rack.

The invention can be particularly advantageous in the case of conveying devices use where the rails run obliquely to the horizontal, for example for raising wheelchairs or other loads along stairs.

In this case, the invention provides that the axes of the gears are pre-tied via cardan joints with dor Dreliuollo, as in this case between the axis of rotation of the gears running along the side racks and the Axis of the rotating shaft is an angle.

The invention can easily be applied to such conveying devices use where the rails run with an alternating incline. This is for example the case when the rails initially have a certain inclination with respect to the Horizontals are led up a flight of stairs and then on a landing a horizontal guide should be provided. This horizontal guide can be curved to guide the chassis with the support column to the next flight of stairs. In this case, the invention provides that the chassis around Suerachsen are pivotally connected to the support column, which is at the same height as the Cardan joints lie. The chassis can therefore not only be relatively narrow Adjust the curvatures of the rails in the horizontal, but can also adjust curvatures the rails in vertical planes easily following the drive motor for movement the support column is expediently arranged in its cavity.

The chassis structure described above can be omitted if the support column or preferably a narrowor that continues upwards Approach extends through the upper longitudinal slot in the upper hollow profile and there two side by side from the inside on the lower horizontal legs of the hollow profile Has supporting wheels. The upper gear is expediently coaxial arranged between the two support wheels. Due to the coaxial arrangement of The support column can also be installed at an angle to the horizontal with the upper gear and upper carrying wheels running support rails hang vertically down, as the suspension according to the present embodiment on only one transverse axis makes this possible.

For lateral guidance of the support column at the upper end can be provided be that in front of and / or behind the support wheels or the upper gear with the support column fixedly connected guide rollers with a vertical axis engage in the longitudinal slot. If chassis are used, the rollers can be relative in the axial direction be briefly trained. In the preferred embodiment with uniaxial articulation the support column at the upper end, however, the rollers must be in the vertical direction like this be made long that they are both horizontal and inclined Course of the support rails are in engagement with the edges of the longitudinal slot.

At the lower end there can be a special chassis like after the first one Embodiment can be avoided in that a guide plate around the transverse axis below of the lower gear is arranged pivotably on the support column, which before and / or behind the gear in the lower longitudinal slot engaging, laterally and vertically carries leading roles with vertical axis. For stable attachment the Platform on the support column or, optionally, a seat, is after a Another embodiment of the invention provides that the support column has a U-profile beam with vertical guides in the side legs, in from the open side Engage forth sliding shoes of a platform support body. Appropriately is the Platform or other device by motor-driven ones arranged in the support column Lifting spindles can be raised and lowered.

Around the drive and lifting motors, which are preferably arranged in the support column To supply electricity, run in the interior of the support profile near the axes of the gears power supply rails, which with in extension of the axes of the gears arranged pantographs cooperate.

Due to the arrangement of the power supply rails and the current collectors at the level of the axes of the support wheels is independent of the inclination of the support rails a correct alignment of pantographs and power supply rails is guaranteed.

The invention is described below, for example, with reference to the drawings described, in this shows: Figure 1 and Figure 10 a schematic side view of the end of a flight of stairs with a subsequent stair landing, in which an inventive Conveyor device with rail curvature in the vertical plane (40) is shown, FIG. 2 and FIG. 11 a plan view of the situation in FIG. 1 with a rail curvature in the "horizontal", FIG. 3a, an enlarged, sectioned view analogous to FIG 1, - upper area, with the middle part of the support column broken away, figure 3b An enlarged, sectioned view analogous to FIG. 1, lower area, with the middle part of the support column is broken away0 FIG. 4a is a view rotated by 900 of the object of FIG. 3a in partial section, FIG. 4b, a view analogous to FIG. 4a of the object in partial section Figure 5 is a partial section along section line V - V in Figure 3a Figure 6 a section along line VI - VI in Figure 3b Figure 7 a enlarged, partially sectioned view analogous to FIG. 1, nittlerer EEreic, wherein upper and lower part of the support column are broken away0 Figure 8 is rotated by 90 View of the support column part of FIG. 7 in section. FIG. 9 is a section along the line IX-IX in FIG. 7, FIGS. 12a, b, enlarged, sectional views analogous to FIG. 10, upper and lower area, with the middle part of the support column broken away is.

FIG. 13 shows a view of the object of FIG. 12a rotated by 900 in partial section FIG. 14 a partial section along section line XIV - XIV in FIG. 12a, FIG. 15, a view, analogous to FIG. 13, of the object in partial section FIG. 15a a sectional view analogous to FIG. 15 outside the support column figure 16 a section along the line XVI-XVI of FIG. 12b, FIG. 17 an enlarged, partially Sectional view analogous to FIG. 10, middle area, with upper and lower Part of the support column have broken away.

FIG. 18 shows a view, rotated by 900, of the central part of the support column from FIG FIG. 17 in section, FIG. 19 a section along line XIX - XIX in FIG. 17 According to FIG. 1 and 2 are a lower support rail 11 and an upper one along a staircase 37 Support rail 18 is laid directly next to the wall 38 of the stairwell. At the top At the end of the flight of stairs goes into a podium 39, along which the first the Rails 11, 18 following the incline of the stairs over a curved area 40 into the Pass the horizontal.

According to FIG. 2, the rails 18, 18 are at the end of the landing 39 Curved twice by 900 in the horizontal plane to get to the subsequent flight of stairs 37 'to lead, where the rails again assume an inclination, as can be seen in FIG is.

In the rails 11, 18 is in one to be described in detail below Way, a support column 13 is guided in the longitudinal direction of the rails 11, 18. At the Support column 13 is a platform 36 optionally a seat device synchronized by two Motors 41 and, for example, screw spindles 44 arranged to be height-adjustable.

According to FIGS. 3a, 3b and 4a, 4b, the two rails 11, 18 are as formed box-shaped hollow profiles, which on the opposite Side faces have longitudinal slots 19, 20 through which the ends the support column 13 extend. The column ends open into chassis 21, 22, which each consist of a frame 23 or 26.

The upper chassis 21 is in the manner of a four-wheeled cart with two axles 24 are formed on each side of the support column 13. On both of them Ends of the axle 24 are provided with wheel rims 25 wheels which as a rail vehicle on the edges of the hollow profile 18 next to the longitudinal slot 20 According to Fig. 3a, the distance between the two axles 24 is in the direction of travel relatively small, so that the relatively tight curves shown in FIG. 2 can also be driven through can be.

The lower chassis is according to FIGS. 3b and 4b also with a Frame 26 is provided, which on both sides of the support column axis 13 in the direction of travel one behind the other two vertically extending axes of rotation 27 carries. At the top ends the vertically extending axes 27 are rotatably mounted wheels 28, which in the Have inner of the lower hollow profile 11 lying wheel rims and with their narrower The area just fit through the longitudinal slot 19. That way is the Support column 13 in both rails 11, 18 against rotation about its own axis or held to the side of the direction of travel0 To achieve a lower center of gravity in the loaded state, the upper hollow profile 18 is load-bearing over the upper chassis, the lower hollow profile has, inter alia. a leadership role.

A deviation of the support column 13 from the vertical is not possible, because both chassis are exactly the same due to the rigid shaft connection Move speed. From the vertically arranged, motor-driven rotating shaft 16, the power is transmitted via cardan joints 31, 32 and axles 29, 30 the gears 14, 15, which are attached to the sides in the hollow profiles 11, 18, in The direction of travel running racks 12, 17 mesh0 The gears 14, 15 are non-rotatably with each other tied together; due to their encroachment on doii Ztshrlotarl (ueo 12, 17 both ends of the column 13 can only be completely synchronized Move in the direction of travel, so that tilting of the support column 13 in the direction of travel is impossible is.

So that the chassis 21, 22 are also designated by 40 in FIG. 1 Can pass through curvature in the vertical plane, they are about transverse axes 33, 34 (Fig0 3a, 4a, 3b, 4b) articulated to the support column 13. The transverse axes 33, 34 bs are found at exactly the same height as the cardan joints 31, 32o in Fig. 1 is indicated how the gears 14, 15 via their axes 29, 30 and the cardan joints 31, 32 cooperate with the rotary shaft 16 when the support column 13 is on a corresponding to the incline of the stairs inclined area of the support rails 11, 18 is located.

The motor 35 for driving the rotary shaft 16 is expediently in the central area of the support column provided; it is shown over in Figs Gear members are drivingly connected to the rotating shaft 16. About a suitable Stromabnahmersysterfi (not shown) or via flexible lines he can be powered.

The mode of operation of the conveyor device according to the invention in particular for patient elevators is as follows: First, by actuating the device accordingly the motors 41 (Fig. 1) moved the platform 36 down and a hospital elevator The motors 41 are then rolled up onto the platform 36 for lifting the platform operated from the ground.

Now the motor 35 (Fig. 1, 7) is turned on, whereupon the Rotary shaft 16, the universal joints 31, 32, the axes 29, 30 and the two gears 14, 15 set in motion. The chassis 21, 22 and thus the support column 13 with the platform 36 now move along the hollow profile rails 11, 18. The Chassis 21, 22 folenn thereby dom vnrtlkol and and horizontally curved course of the rails 11, 18, due to the joints 33, 34 and the cardan joints 31, 32 and the relatively short wheelbase of the wheels 25 in the chassis 21 or the wheels 28 in the chassis 22o as soon as the support column 13 at the destination has arrived, the motor 35 is stopped, the platform 36 by actuation the motors 41 lowered and the hospital elevator rolled down.

Optionally, a seat device 46 can be used instead of the platform 36 the support column 13 be mounted. The mode of operation of the conveyor would then be the same.

According to FIGS. 10 to 19, the chassis 21, 22 according to the previous embodiment and in particular on the universal joints 31, 32 can be omitted if the support column 13 has a narrow approach at its upper end 131 which reaches through the longitudinal slot 20 in the upper hollow profile 18 and the upper gear 15 rotatable about a transverse axis 61 and coaxial therewith to both Side carrying wheels 25 takes up. While the support wheels 25 on 'the lower legs 49 of the hollow profile 18 rest, the gear 15 engages in a on the ceiling of the Toothed rack 17 arranged in the hollow profile 18.

The support column 13 is so at its upper end only by means of single axis 61, which runs transversely to the direction of travel, suspended pendulum.

The rotary shaft 16, which by means of a motor 35 via a gear transmission 62 is drivable to a rotary movement in one direction or the other, has at its upper end a screw 48, which like the rack 17 with the teeth of the gear 15 fits together. The worm 48 and the teeth of the gear 15 together therefore form a worm gear 47.

In front of and behind the extension 13 'are at the upper end of the support column 13 Rollers 50 attached with a vertically extending axis of rotation, which fit from below engage in the longitudinal slot 20 and to guide the support column 13 to the side serve the support rail hollow profile 18, at the bottom carries the support column 13 around a transverse axis 52 rotatably the lower gear 14, which also has a at the lower end of the Rotary shaft 16 arranged worm 48 with the rotary shaft 16 in rotationally fixed engagement stands, in such a way that upon rotation of the shaft 16 in a certain direction the direction of travel of the two gears 14, 15 is the same.

Below the lower gear 14 is located in the lower support rail hollow profile 11 a rack 12 which runs parallel to the upper rack 17.

On both sides of the gear 14 there are guide plates 51, which are also pivotable about the axis 52.

Between the guide plates 51 and the side walls of the support column 13 are spacers 63. The guide plates 51 extend forward and behind the diameter of the lower gear 14 clearly and point at their front and / or rear end regions guide rollers 53 with vertical Axis that engage in the longitudinal slot 19 from above and the guide plate 51 run laterally and vertically on the lower hollow profile 11.

According to FIGS. 10 to 19, the support column 13 has at least within the Lifting area of the platform 36 is in the form of a U-shaped beam, in which one another opposite side legs 55 are vertical guides 54. In these grip from the inside sliding shoes 56 of a supporting body carrying the platform 36 57 a. A nut 58 with a vertical axis is attached to the inside of the support body 57, in which a lifting spindle 44 is rotatably arranged, which from a bottom in the Support column 13 arranged motor 41 with optionally interposed transmission can be driven in one direction or the other to produce a rotary movement.

The mode of operation of the embodiment according to FIGS. 10 to 19 is analogous to the mode of operation of the exemplary embodiment described at the beginning, i. That is, according to FIG. 10, even when the support rail 18 is driven into inclined stretches or the support rail 11, the support column 13 as a result of the compulsory synchronous worm gear 47 remains arranged vertically because the suspension is only on the transverse axis 61 a swing of the support column 13 relative to the longitudinal axis of the support rail 10 allows, oWlr3nso like the support plate arrangement arranged below, uni the cross axis 52 51 allows an angle between the support column 13 and the lower support rail 11 Blank page

Claims (26)

Conveyor device for loads Claims: 1. Conveyor device for loads, especially wheelchairs, along a linear path with an upper, along the track arranged support rail, parallel to the one in its vicinity a rack runs, and a parallel lower support rail, with a one Support body having the platform is attached to the support rail in a sliding or rolling manner and is supported on the support rail against lateral loads and an am Support body rotatably mounted and motor-driven gear with the rack is in drive engagement, thereby g e k e n n -z e i c h n e t that also parallel to and near the support rail (11) a rack (12) is arranged into which a engages second lower gear (14) rotatably arranged on the support body (13), which is rotatably coupled to the first gear (15). 2. Fördervorric1Itung according to claim 1, characterized in that g e k e n n -z e i c h n-e t that the support body is a vertically arranged, hollow support column (13), in the interior of which a rotating shaft (16) runs vertically, the opposite ends of which are in rotationally fixed engagement with the gears (14, 15). 3. Conveyor device according to claim 1 or 2, characterized in that g e -k e n n z e i c h n e t that the gears (14, 15) rotatably with a vertically extending axis are attached to the ends of the rotating shaft (16) and that the racks (12, 17) next to it are arranged. 4. Conveyor device according to claim 1 or 2, characterized in that g e -k e n n z e i c h n e t that the gears (14, 15) with horizontal and transverse to the direction of travel extending axis are arranged and with the rotating shaft (16) via a gear (47) are in a rotationally fixed connection. 5. Conveying device according to claim 4, characterized in that g e k e n n -z e i c n e t that the gear (47) by a worm (48) at each end of the rotating shaft (16) and the gear (14, 15) which is in engagement with it is itself formed. 6. Conveying device according to one of the preceding claims, characterized it is not indicated that the rails are box-shaped hollow profiles (11, 18) with a longitudinal slot (19, 20) on opposite sides. 7. Conveyor device according to claim 6, characterized in that g e k e n n -z e i c h n e t that the support column (13) extends through the longitudinal slots (19, 20) and inside the hollow profiles (11, 18) chassis (21, 22) which are attached to the Attack rails (11, 18) and with the support column (13) preferably through horizontal Axes (33,34) are connected. 8. Conveyor device according to claim 7, characterized in that g e -k e n n z e i c h n e t that the upper chassis (21) one inside the upper hollow profile (18) arranged frame (23) and two axles (24) provided thereon with support wheels (25), which on the lower horizontal legs (49) of the upper hollow profile (18) run next to the longitudinal slot (20). 9. Conveying device according to claim 8, characterized in that g e -k e n n z e i c h n e t that the carrying wheels (25) are also laterally guided by wheel rims (25 ') are. 10. Conveyor device according to claim 7 or 8, characterized in that g e -k e n n z e i c h n e t that the lower chassis (22) has one inside the lower hollow profile (11) arranged frame (26) and two axles preferably arranged vertically thereon (27) with upwardly provided flange wheels (2.3), which in the longitudinal slot (19) engage the lower hollow profile (11). 11. Conveying device according to claim 10, characterized in that g e k e n n -z e i c h n e t that the diameter of the lower wheels (28) is approximately the width of the longitudinal slot (19) of the lower hollow profile (11) corresponds. 12. Conveyor device according to one of the preceding claims, at which the rails run obliquely to the horizontal, thus g e k e n n n z e i c h n e t that the axes (29, 30) of the gears via cardan joints (31, 32) with the rotating shaft (16) are connected. 13. Conveyor device according to claim 12, wherein the rails with alternating Incline, as a result of the fact that the chassis (21, 22) about transverse axes (33, 34) pivotably connected to the support column (13) are, which are at the same height as the universal joints (31, 32). 14. Conveying device according to one of the preceding claims, characterized g e k e n n n z e i c h n e t that the drive motor (35) for the movement of the Support body (13) is arranged in the interior of the support body (13). 1 5. Conveying device according to one of the preceding claims, characterized it is not noted that the platform (36) or, optionally, a seat device (46) is mounted adjustable in height on the support body (13) and the vertical movement preferably by motorized (41) operated spindle nuts (58! Lifting spindles (44) takes place. 16. Conveyor device according to claim 6, wherein the rails with alternating Incline, as a result of the fact that the support column (13) or preferably a narrow traverse (13 ') extending upwards the upper longitudinal slot (20) extends into the upper hollow profile (18) and there with is movably connected to the chassis (23) via the axle (34). 17. Conveyor device according to claim 16, characterized in that g e k e n n -z e i c h n e t that the support column (13) with the one provided in the lower support rail (11) The chassis (22) can be pivoted above the support rail (11) by means of bolt connections (33) connected is. 18. Conveyor device according to one of the preceding claims, characterized It is not noted that the support column is a U-profile beam with vertical guides (54), in the side legs (55), in the sliding shoes from the open side (56) engage a platform support body (57). 19. Conveying device according to one of the preceding claims, characterized it is not noted that power supply rails are inside the upper mounting rail (not shown) that run with pantographs on the chassis (23) or on mounted on the axis of the pair of rollers, cooperate. 20. Conveying device according to one of the preceding claims, characterized it is noted that the horizontal movement of the support column (13) occurs changing rail inclination by equally sized gears (14, 15) in racks (12, 17) of the support rail (18) and support rail (11) einyreifen, is accomplished. 21. Conveying device according to claim 20, characterized in that g e k e n n -z e i c h n e t that the gears (14, 15) rotatably with a vertically extending axis are connected at the ends of the rotating shaft (16) and that the racks (12, 17) are arranged axially to this. 22. Conveyor device according to claim 21, characterized in that g e k e n n -z e i c h n e t that the gears (14, 15) are horizontal and at right angles to the direction of travel extending axis are arranged and with the rotating shaft (16) via a gear (47) are in a rotationally fixed connection. 23. Conveyor device according to claim 22, characterized in that g e k e n n -z e i c h n e t that the gear (47) through a worm (48) at each end of the rotating shaft (16) and the gear (14, 15) which is in engagement with it is itself formed. 24. Conveyor device according to claim 22, characterized in that g e k e n n -z e i c h n e t that the upper gear (15) coaxially between the two support wheels (25) is arranged. 25. Conveying device according to one of the preceding claims, characterized it is not indicated that in front of and behind the support wheels (25) or the upper one Gear (15) with the support column (13) connected guide rollers (50) with vertical Engage the axis in the longitudinal slot (20). 26. Conveying device according to one of claims 16 to 25, characterized It is not noted that at the bottom there is a guide system (51) around the transverse axis (52) of the lower gear (14) is arranged pivotably on the support column (13), which in front of and behind the gear (14) engages in the lower longitudinal slot (19), laterally and vertically leading rollers (53) with a vertical axis.